JP3048928U - Anti-vibration pallets for transportation - Google Patents

Abstract

(57) [Problem] To provide a pallet for transporting precision equipment such as measuring equipment without protecting the precision equipment from external vibration without using a special vehicle such as an air suspension specification vehicle. It is. SOLUTION: An upper and lower deck comprising a frame having a lattice-shaped support bar is provided, and bellows type air springs are arranged at four corners between the upper and lower decks, and the bellows type air spring and the upper and lower decks are connected. In addition, a torsion stop is provided near the bellows-type air spring to prevent vibrations exceeding the permissible shock value from being applied to precision equipment mounted on the deck during transportation. Using vehicles to transport precision equipment safely and reduce transportation costs.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a pallet for transporting precision equipment such as precision measurement equipment while protecting the precision equipment from external vibration.

[0002]

[Prior art]

 In recent years, when transporting precision equipment such as precision measurement equipment, vehicles using air suspension specifications have become the mainstream. However, even in the case of small-volume transportation, the use of special vehicles such as the air-suspension-specific vehicles described above is treated as charter flights, which is the biggest cause of increased transportation costs.

[0003] In the above-described case, if it is possible to carry out transportation by a normal vehicle that does not require special equipment and to carry it together with other products, transportation costs can be reduced, which is extremely effective. It is.

[0004] However, conventionally, there has been no suitable means for achieving the above-mentioned object.

[0005]

[Problems to be solved by the invention]

 The purpose of the present invention is to solve the above-mentioned problems and reduce the transportation cost.

[0006]

[Means for Solving the Problems]

 That is, in the present invention, an upper and lower deck comprising a frame having a grid-like support bar is provided, and bellows-type air springs are arranged at four corners between the upper and lower decks, and the bellows-type air spring is connected to the upper and lower decks. The above problem and the provision of a twist stop near the bellows-type air spring solve the above-mentioned problems.

[0007]

[Embodiment of the invention]

 Hereinafter, the present invention will be described with reference to the drawings. Fig. 1 is a front view of the present invention, and Fig. 2 is a plan view. 1 and 2, reference numeral 1 denotes an upper deck, and 2 denotes a lower deck, each of which is constituted by a steel frame 3 and a support bar 4 extending vertically and horizontally between the frames 3. Reference numeral 5 denotes air spring attachment portions provided at four corners of the frame 3, and reference numeral 6 denotes a bellows type air spring attached to the air spring attachment portion 5, which is interposed between the upper deck 1 and the lower deck 2. Reference numeral 7 denotes a bolt for fixing the bellows type air spring 6 to the upper deck 1 and the lower deck 2, and reference numeral 8 denotes a valve for injecting air into the bellows type air spring 6. Reference numeral 9 denotes a bellows-type air spring 6 near the above-mentioned bellows-type air spring 6 and between the upper deck 1 and the lower deck 2, which is fixed to prevent twisting. Reference numeral 10 denotes a bellows-type air spring 6 for the upper deck 1 and the lower deck. It is a pedestal to be fixed to 2.

In order to assemble the pallet of the present invention, first, an upper deck 1 and a lower deck 2 composed of a steel frame 3 and support bars 4 erected vertically and horizontally between the frames 3 are prepared. A bellows-type air spring 6 is mounted on the air spring mounting portion 5 provided at each of the four corners with a bolt 7 via a pedestal 10. Further, a torsion stopper 9 is fixed in the vicinity of the bellows type air spring 6 and between the upper deck 1 and the lower deck 2. Further, the amount of air supplied from the air injection valve 8 is adjusted to set the pressure receiving load of the bellows type air spring 6.

Since the pallet of the present invention is configured as described above, when transporting precision equipment, the pallet of the present invention is fixed to a carrier (not shown) of a transportation vehicle by bolts or the like, and then the upper portion of the pallet is transported. When precision equipment to be transported is placed on the deck 1, the precision equipment is held and fixed by the support bar 4 of the frame 3. Therefore, the vibration applied from the outside during transportation is absorbed by the movement of the bellows type air springs 6 provided at the four corners of the upper deck 1 and the lower deck 2, and the torsional force applied to the upper deck 1 or the lower deck 2 is Since the force is suppressed by the torsion stopper 9, a shock exceeding the allowable shock value (10 G) is not transmitted to the precision equipment mounted on the upper deck 1, and a force of 1 G or more is not applied particularly in the vertical direction. Precision equipment during transportation will not cause failures due to external vibration.

An example of the specifications of the pallet of the present invention is as follows. However, the size, performance, etc. of the pallet and bellows type air spring can be changed as appropriate according to the shape, weight, etc. of the precision equipment to be transported.

[0011]

【Example】

Next, an actual example of the case where precision equipment is transported by test using the pallet of the present invention is shown. (1) Transport conditions a. Transportation model 4 ton loading wing gate equipment (total vehicle weight 8 ton) b. Weight of transportation precision equipment 1,000 kg (Air spring pressure 1,000 / 4, 250 kg per air spring) c. Transportation precision equipment stacking position Vehicle rear wheel / top of cargo bed d. Weight of stacked cargo 2,600kg e. Air spring setting internal pressure 4 kgf / cm ² (2) Transportation section and road a. Travel section Atsugi-shi, Kanagawa-Osaka-shi b. Traveling road General road-Atsugi IC (Tomei / Meishin Expressway)-Toyonaka IC / Hanshin Toyonaka ramp (Hanshin east line / Osaka loop line)-Fukushima ramp-General road c. Travel distance 600km (3) Impact record during running test a. Shock memory meter, manufactured by Yamaichi Electric Co., Ltd. Model number IM6060T (6 directions in 3 axes) b. Number of recorded data 3,000 (memory setting 1G or more related recording) c. Maximum impact record The maximum impact record in each running section is as follows. (4) Test results The maximum impact value for each traveling road was extracted from the 3,000 G data recorded in the traveling test impact record, but none of the records exceeded the allowable impact value (G) of 10 G for precision measuring equipment. The impact value in the left-right direction (X) when changing the course of the vehicle was recorded slightly higher than other records due to the characteristics of the air spring, but was within the allowable range. It also absorbs shocks in the front-rear direction (Y) when starting and decelerating (with brakes), and has excellent shock absorption characteristics especially in the up-down direction (Z). All the conditions were satisfied with the value in.

[0012]

[Effect of the invention]

 As described above, the pallet of the present invention does not transmit vibrations exceeding the allowable shock value (10 G) from the outside to the precision equipment on which it is mounted during transportation. It is possible to transport precision equipment using ordinary vehicles without using special vehicles such as specification vehicles, and it is necessary to use special vehicles even when transporting small lots of precision equipment. In addition, it is possible to transport precision equipment and other cargo in a mixed manner, and therefore, it is possible to reduce transportation costs, and the effect is enormous.

[Brief description of the drawings]

FIG. 1 is a front view of the present invention.

FIG. 2 is a plan view of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Upper deck 2 Lower deck 3 Frame 4 Support bar 5 Air spring attachment part 6 Bellows type air spring 7 Bolt 8 Air injection valve 9 Torsion prevention 10 Base

Claims (2)

[Utility model registration claims] An upper and lower deck comprising a frame having a lattice-shaped support bar is provided, and bellows-type air springs are arranged at four corners between the upper and lower decks, and the bellows-type air springs are connected to the upper and lower decks. A vibration isolating pallet for transportation. 2. The antivibration pallet for transport according to claim 1, wherein a twist stop is provided near bellows type air springs provided at four corners between the upper and lower decks.